CN210037574U

CN210037574U - Quantitative sample introduction pipeline of water quality detector

Info

Publication number: CN210037574U
Application number: CN201920475288.6U
Authority: CN
Inventors: 左天罡; 李艳伟
Original assignee: Jiangsu Jucong Environmental Technology Co Ltd
Current assignee: Jiangsu Jucong Environmental Technology Co Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-02-07
Anticipated expiration: 2029-04-10

Abstract

The utility model discloses a water quality testing appearance's ration advances a pipeline: the device comprises a peristaltic pump, a first liquid level sensor, a first three-way valve, a quantitative ring pipe, a multi-way electromagnetic valve and a programmable controller; still include the feed liquor subassembly, the feed liquor subassembly includes feed liquor pipe, back flow, drain pipe and No. two three-way valves, the public end intercommunication of No. two three-way valves feed liquor pipe, normally closed end intercommunication drain pipe, normally open end intercommunication the back flow, another termination of feed liquor pipe water source that awaits measuring, another termination of drain pipe is one the container port, the other end of back flow is wasted discharge. The utility model discloses an external water source that awaits measuring of feed liquor subassembly, the water source that awaits measuring that can last takes a sample, and then can realize going forward the artifical sample of detection at every turn need not detecting the continuation or the periodic detection of sewage, has guaranteed the instantaneity and the accuracy of detection.

Description

Quantitative sample introduction pipeline of water quality detector

Technical Field

The utility model relates to a water quality testing technique and equipment field, concretely relates to water quality testing appearance's ration advances kind pipeline.

Background

With the development of science and technology, the living standard of people is higher and higher, but the improvement of the living of substances is accompanied with the aggravation of environmental pollution, especially water quality pollution. The water quality analyzer is a device for monitoring water quality and has the advantages of accurate monitoring data and good real-time performance. The traditional environmental water quality detection work mainly takes manual sampling and laboratory instrument analysis. Although the analysis means in the laboratory is complete, the monitoring in the laboratory has the defects of low monitoring frequency, large sampling error, scattered monitoring data, incapability of reflecting the pollution change condition in real time and the like. With the enhancement of environmental awareness of people and the perfection and strictification of laws and regulations of corresponding policies and laws of the state, the concepts of high-quality instruments, micro-scale design, multi-parameter simultaneous measurement, modular thought and network informatization become the development trend of new-generation instruments.

Patent document 1 discloses a quantitative metering device of a water quality detector, which adopts a quantitative ring pipe design, can discharge through a three-way electromagnetic valve when sampling is redundant, and has the advantages of accurate metering and convenient operation. The basic principle of the quantitative metering device is shown in figure 1, an actual water sample is temporarily stored in a water sample bottle, the water sample is extracted into the metering device through a peristaltic pump, and the water sample is conveyed into a digestion tube for treatment after metering. When this kind of structure is examining at every turn, all need the manual work to supply the sample for the water sample bottle, the operation is more loaded down with trivial details, can't realize in addition to the continuation, instant, the on-line monitoring of quality of water.

Patent document 1: CN 107860614A.

SUMMERY OF THE UTILITY MODEL

In order to realize continuous, instant or periodic detection of water quality, the utility model provides a quantitative sampling pipeline of a water quality detector.

The utility model adopts the technical scheme as follows:

a quantitative sampling pipeline of a water quality detector comprises: the other end of the peristaltic pump is emptied, the common end of the three-way valve is communicated with the liquid level sensor, the normally closed end of the three-way valve is communicated with the quantitative ring pipe, and the normally open end of the three-way valve is used for waste discharge; the multi-way electromagnetic valve comprises a metering port, a liquid outlet port, an air port and a container port, the metering port is a public port and is communicated with the quantitative ring pipe, the liquid outlet port, the air port, the first container port and the second container port are split ports, and the liquid outlet port is communicated to the digestion pipe assembly; the programmable controller is electrically connected with the multi-way electromagnetic valve, the first liquid level sensor, the first three-way valve, the peristaltic pump, the quantitative ring pipe and the digestion pipe assembly; the liquid inlet assembly comprises a liquid inlet pipe, a backflow pipe, a liquid outlet pipe and a second three-way valve, wherein the public end of the second three-way valve is communicated with the liquid inlet pipe, the normally closed end is communicated with the liquid outlet pipe, the normally open end is communicated with the backflow pipe, the other end of the liquid inlet pipe is connected with a water source to be measured, the other end of the liquid outlet pipe is connected with the port of the second container, and the other end of the backflow pipe discharges waste; the liquid inlet pipe and the return pipe are respectively provided with a first switch valve and a second switch valve; the second three-way valve, the first switch valve and the second switch valve are electrically connected with the programmable controller.

The utility model has the advantages that: the utility model discloses an external water source that awaits measuring of feed liquor subassembly, the water source that awaits measuring that can last takes a sample, and then can realize going forward the artifical sample of detection at every turn need not detecting the continuation or the periodic detection of sewage, has guaranteed the instantaneity and the accuracy of detection.

Preferably: and a pipeline filter is arranged on the liquid inlet pipe.

Preferably: and a liquid inlet pump is arranged on the liquid inlet pipe.

Preferably: the liquid inlet assembly further comprises a water sample bottle and a third three-way valve, wherein the common end of the third three-way valve is communicated with the port of the second container through a liquid inlet main pipe, the normally closed end of the third three-way valve is communicated with the water sample bottle through a standby pipe, and the normally open end of the third three-way valve is communicated with a liquid outlet pipe; the third three-way valve is electrically connected with the programmable controller.

Preferably: the liquid inlet assembly further comprises a temporary storage bottle, and the temporary storage bottle receives the incoming water of the liquid outlet pipe and is communicated with the port of the second container through a liquid pumping pipe.

Preferably: the temporary storage bottle is provided with a second liquid level sensor, and the second liquid level sensor is electrically connected with the programmable controller and used for detecting a high liquid level.

Preferably: the temporary storage bottle is provided with a liquid discharge pipe, a third switch valve is arranged on the liquid discharge pipe, and the third switch valve is electrically connected with the programmable controller.

Preferably: the liquid discharge pipe is a clean discharge pipe and communicated to the return pipe.

Drawings

Fig. 1 is a schematic diagram of the principle of patent document 1.

Fig. 2 is a schematic diagram of a pipeline according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a pipeline according to a second embodiment of the present invention.

Fig. 4 is a schematic diagram of a pipeline according to a third embodiment of the present invention.

Fig. 5 is a schematic diagram of a pipeline according to a fourth embodiment of the present invention.

Peristaltic pump P1, liquid inlet pump P2, liquid level sensor G1, liquid level sensor G2, three-way valve V1, three-way valve V2, three-way valve V3, switch valve H1, switch valve H2, switch valve H3, quantitative loop LC, multi-way solenoid valve D, metering port c, liquid outlet port a, air port 1, first container port 2-4, 6-8, second container port 5, liquid inlet pipe L1, return pipe L2, liquid outlet pipe L3, liquid inlet header pipe L4, standby pipe L5, liquid suction pipe L6, liquid discharge pipe L7, pipeline filter FI, water sample bottle 5A, temporary storage bottle 5B, digestion pipe assembly 100, programmable controller 200, liquid inlet assembly 300.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings and examples.

The present invention is an improvement made on the basis of patent document 1, and therefore, the details of the specific structure of the destructive decomposition tube assembly 100, the quantitative sampling principle, and the like, which are the same or similar, are not repeated.

In the example, as shown in fig. 2: a quantitative sampling pipeline of a water quality detector comprises: the peristaltic pump P1, a first liquid level sensor G1, a first three-way valve V1 and a quantitative loop LC are sequentially communicated, the other end of the peristaltic pump P1 is emptied, the common end of the first three-way valve V1 is communicated with the first liquid level sensor G1, the normally closed end is communicated with the quantitative loop LC, and the normally open end is used for waste discharge; the multi-way electromagnetic valve D comprises a metering port c, a liquid outlet port a, an air port 1, first container ports 2-4, 6-8 and a second container port 5, wherein the metering port c is a public port and communicated with the quantitative ring pipe LC, the liquid outlet port a, the air port 1 and the container ports 2-8 are split ports, and the liquid outlet port a is communicated to the digestion pipe assembly 100; the programmable controller 200 is electrically connected with the multi-way electromagnetic valve D, the first liquid level sensor G1, the first three-way valve V1, the peristaltic pump P1, the quantitative loop LC and the digestion tube assembly 100; the liquid inlet assembly 300 comprises a liquid inlet pipe L1, a return pipe L2, a liquid outlet pipe L3 and a second three-way valve V2, wherein the common end of the second three-way valve V2 is communicated with the liquid inlet pipe L1, the normally closed end is communicated with the liquid outlet pipe L3, the normally open end is communicated with the return pipe L2, the other end of the liquid inlet pipe L1 is connected with a water source to be measured, the other end of the liquid outlet pipe L3 is connected with the second container port 5, and the other end of the return pipe L2 discharges waste; a first switch valve H1 and a second switch valve H2 are respectively arranged on the liquid inlet pipe L1 and the return pipe L2; the second three-way valve V2, the first on-off valve H1 and the second on-off valve H2 are electrically connected to the programmable controller 200. The external water source that awaits measuring of feed liquor subassembly 300 of this embodiment, can last take a sample to the water source that awaits measuring, and then can realize the continuation or the periodic detection to sewage, need not to advance at every turn and take a sample by worker in the detection, has guaranteed the instantaneity and the accuracy that detect.

In the example, as shown in fig. 2: and a pipeline filter FI is arranged on the liquid inlet pipe L1. Pipeline filter FI can carry out a preliminary physics to the water source that awaits measuring and filter to impurity in the sewage blocks up the inside comparatively meticulous pipeline of detector. The Y-shaped filter which is convenient to clean is selected for the embodiment.

In the example, as shown in fig. 2: and a liquid inlet pump P2 is arranged on the liquid inlet pipe L1. Generally speaking, the water source to be measured can not naturally form stable flow, so the liquid inlet pump P2 is needed to assist in order to form stable and slow water flow, and the sewage can be ensured to smoothly enter the detector under the action of the peristaltic pump P1.

In a second embodiment, as shown in FIG. 3: the liquid inlet assembly 300 further comprises a water sample bottle 5A and a third three-way valve V3, wherein a common end of the third three-way valve V3 is communicated with the second container port 5 through a liquid inlet header pipe L4, a normally closed end is communicated with the water sample bottle 5A through a standby pipe L5, and a normally open end is communicated with a liquid outlet pipe L3; the third three-way valve V3 is electrically connected to the programmable controller 200. The water sample bottle 5A of this embodiment is as reserve sample source, but the external environment part forms good rivers for when the sample difficulty, usable water sample bottle 5A carries out artifical sample, thereby guarantees the commonality and the adaptability of instrument.

In a third embodiment, as shown in FIG. 4: the liquid inlet assembly 300 further comprises a temporary storage bottle 5B, and the temporary storage bottle 5B receives the incoming water from the liquid outlet pipe L3 and is communicated with the second container port 5 through a liquid pumping pipe L6. The bottle of keeping in 5B of this embodiment has two effects as the space of keeping in of sample, avoids outside rivers to the impact of instrument internal pipeline firstly, reduces the bubble in the instrument internal pipeline secondly, guarantees quantitative feeding's accuracy nature.

In a third embodiment, as shown in FIG. 4: the temporary storage bottle 5B is provided with a second liquid level sensor G2, the second liquid level sensor G2 and the programmable controller 200 are electrically connected and used for detecting a high liquid level. When the liquid level in the temporary storage bottle 5B exceeds the limit, the second liquid level sensor G2 of the embodiment gives an alarm or performs shutdown treatment, so that the equipment is prevented from being damaged.

In a third embodiment, as shown in FIG. 4: the temporary storage bottle 5B is provided with a liquid discharge pipe L7, a third switch valve H3 is arranged on the liquid discharge pipe L7, and the third switch valve H3 is electrically connected with the programmable controller 200. The liquid discharge pipe L7 of this embodiment is used for discharging liquid, and prevents the temporary storage bottle 5B from overflowing.

In a third embodiment, as shown in FIG. 4: the drain pipe L7 is a drain pipe and is communicated to the return pipe L2. The fluid-discharge tube L7 of this embodiment sets up in the bottom of bottle 5B of keeping in, consequently can be with bottle 5B liquid bottle of keeping in clean, avoids taking place mutual interference between the different water sources that await measuring.

The fourth embodiment, as shown in fig. 5, is actually a combination of the second and third embodiments, and has two devices, namely a water sample bottle 5A and a buffer bottle 5B, which are relatively complex in structure but relatively complete in function.

It is obvious that the above embodiments of the present invention are only examples for illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. There is no need or no way to give poor examples of all embodiments. And that such obvious changes and modifications are within the scope of the present invention as defined by the appended claims.

Claims

1. A quantitative sampling pipeline of a water quality detector comprises:

the system comprises a peristaltic pump (P1), a first liquid level sensor (G1), a first three-way valve (V1) and a quantitative ring pipe (LC), wherein the peristaltic pump (P1) is communicated with the other end of the peristaltic pump in sequence, the common end of the first three-way valve (V1) is communicated with the first liquid level sensor (G1), the normally closed end is communicated with the quantitative ring pipe (LC), and the normally open end is used for waste discharge;

the multi-way electromagnetic valve (D) comprises a metering port (c), a liquid outlet port (a), an air port (1), first container ports (2-4, 6-8) and a second container port (5), wherein the metering port (c) is a public port and is communicated with the quantitative ring pipe (LC), the liquid outlet port (a), the air port (1), the first container ports (2-4, 6-8) and the second container port (5) are split ports, and the liquid outlet port (a) is communicated to the digestion pipe assembly (100);

the programmable controller (200) is electrically connected with the multi-way electromagnetic valve (D), the first liquid level sensor (G1), the first three-way valve (V1), the peristaltic pump (P1), the quantitative ring pipe (LC) and the digestion pipe assembly (100);

the method is characterized in that:

the liquid inlet assembly (300) comprises a liquid inlet pipe (L1), a return pipe (L2), a liquid outlet pipe (L3) and a second three-way valve (V2), the public end of the second three-way valve (V2) is communicated with the liquid inlet pipe (L1), the normally closed end is communicated with the liquid outlet pipe (L3), the normally open end is communicated with the return pipe (L2), the other end of the liquid inlet pipe (L1) is connected with a water source to be measured, the other end of the liquid outlet pipe (L3) is connected with the second container port (5), and the other end of the return pipe (L2) discharges waste; the liquid inlet pipe (L1) and the return pipe (L2) are respectively provided with a first switch valve (H1) and a second switch valve (H2); the second three-way valve (V2), the first switch valve (H1) and the second switch valve (H2) are electrically connected with the programmable controller (200).

2. The quantitative sample introduction pipeline of the water quality detector according to claim 1, characterized in that: and a pipeline Filter (FI) is arranged on the liquid inlet pipe (L1).

3. The quantitative sample introduction pipeline of the water quality detector according to claim 1, characterized in that: and a liquid inlet pump (P2) is arranged on the liquid inlet pipe (L1).

4. The quantitative sample introduction pipeline of the water quality detector according to claim 1, characterized in that: the liquid inlet assembly (300) further comprises a water sample bottle (5A) and a third three-way valve (V3), wherein the common end of the third three-way valve (V3) is communicated with the port (5) of the second container through a liquid inlet header pipe (L4), the normally closed end is communicated with the water sample bottle (5A) through a standby pipe (L5), and the normally open end is communicated with a liquid outlet pipe (L3); the third three-way valve (V3) is electrically connected with the programmable controller (200).

5. The quantitative sample introduction pipeline of the water quality detector according to claim 1, characterized in that: feed liquor subassembly (300) still includes bottle (5B) of keeping in, bottle (5B) of keeping in accepts the coming water of drain pipe (L3) and through liquid suction pipe (L6) with second container port (5) intercommunication.

6. The quantitative sample introduction pipeline of the water quality detector according to claim 5, characterized in that: the temporary storage bottle (5B) is provided with a second liquid level sensor (G2), and the second liquid level sensor (G2) is electrically connected with the programmable controller (200) and used for detecting a high liquid level.

7. The quantitative sample introduction pipeline of the water quality detector according to claim 5, characterized in that: the temporary storage bottle (5B) is provided with a liquid discharge pipe (L7), a third switch valve (H3) is arranged on the liquid discharge pipe (L7), and the third switch valve (H3) is electrically connected with the programmable controller (200).

8. The quantitative sample introduction pipeline of the water quality detector according to claim 7, characterized in that: the liquid discharge pipe (L7) is a clean discharge pipe and is communicated to a return pipe (L2).